---
product_id: 59461811
title: "SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310"
brand: "shimano"
price: "€ 6.01"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.ie/products/59461811-shimano-altus-mountain-bike-rear-derailleur-direct-mount-rdm310
store_origin: IE
region: Ireland
---

# Direct Braze-On mount for sleek integration Lightweight 907g metal construction 7/8-speed precision shifting SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310

**Brand:** shimano
**Price:** € 6.01
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Shift into the future with Shimano Altus – where precision meets performance!

## Quick Answers

- **What is this?** SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310 by shimano
- **How much does it cost?** € 6.01 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/59461811-shimano-altus-mountain-bike-rear-derailleur-direct-mount-rdm310)

## Best For

- shimano enthusiasts

## Why This Product

- Trusted shimano brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Metal Build:** Engineered with robust metal materials to withstand rugged outdoor cycling adventures.
- • **Compact Yet Powerful:** Precision dimensions (10.8L x 9.5W x 16.5H cm) ensure a perfect fit without compromising strength.
- • **Direct Braze-On Mount:** Streamlined installation that enhances bike aesthetics and reduces clutter.
- • **Seamless 7/8-Speed Shifting:** Experience smooth, reliable gear changes tailored for city sport and youth mountain bikes.
- • **Optimized for MTB & Urban Riders:** Designed specifically for mountain and city sport bikes, blending performance with versatility.

## Overview

The Shimano Altus RD-M310 Rear Derailleur is a high-performance 7/8-speed drivetrain component designed for mountain and city sport bikes. Featuring a direct Braze-On mount and durable metal construction, it offers smooth, reliable shifting in a compact, lightweight package ideal for active riders seeking dependable gear transitions.

## Description

ALTUS is a 7/8-speed MTB-style component group for city sport and youth bikes.

## Features

- Shimano RD-M310 (RD-CT95) Altus Rear Derailleur 7/8 Speed / D-ATT Silver

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting type | Braze-On Mount |
| Product dimensions | 10.8L x 9.5W x 16.5H centimetres |
| Manufacturer | Shimano |
| UPC | 689228130913 |
| Global Trade Identification Number | 00689228130913 |
| Bike type | mountain |
| Color | Silver |
| Size | 7/8spd |
| Style | Rear Derailleur |
| Team | Shimano |
| Weight | 907 g |
| Material type | Metal |
| Number of items | 1 |
| Sport | Cycling |
| Included components | Rear Derailleur |
| Batteries included? | No |
| Department | Unisex |
| Item model number | 140779 |
| ASIN | B000FFGTK0 |

## Product Details

- **Brand:** SHIMANO
- **Colour:** Silver
- **Material:** Metal
- **Item weight:** 0.01 Ounces
- **League:** Shimano

## Images

![SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310 - Image 1](https://m.media-amazon.com/images/I/61hsxrhAzQL.jpg)
![SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310 - Image 2](https://m.media-amazon.com/images/I/41XqCx+99cL.jpg)
![SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310 - Image 3](https://m.media-amazon.com/images/I/61Pl3cEdvSL.jpg)

## Questions & Answers

**Q: Will this model work on my 5 speed mountain bike? Thanks**
A: Actually, it should work fine.  As someone else stated, the spacing is different between 7 and 5 speed indexing, BUT it is the shifter that does the indexing, NOT the derailluer. So as long as you have the correct shifter on your handle bars or downtube, this should work.  The reason the spacing is different is because manufacturers used different chain thicknesses and closer spacing to match as they added more gears within the same basis space.  The rear cassette is about the same width between a 5 speed and a 10 speed, the individual cogs are just closer together the more speeds you have.  The indexing is handled by the shifter... so if you wish to convert from 5 speed to more in the rear, the parts that change are the shifter at the front and the chain when you go from 5 to 6/7/8, then again to 9 and again to 10.  I recently converted a recumbent trike from 7 to 10 speeds in the rear using a Sunrace freewheel and KMC 10-speed chains with MicroShift bar-end 10 speed shifters using a Shimano 9 speed rear derailleur. Shifts great.  Only reason I changed the rear derailleur out was due to slop in the 7 speed one that made it not shift or skip shift in certain gears.  I used this on my son's hybrid mountain bike for the same reason and it shifts great.

**Q: is this a sis derailer?**
A: This is a shimano altus  rear derailed

**Q: Is the cable adjuster a fastener (using wrench) or a hex screw (using allen key)?**
A: It's a hex screw.  We will update the image

**Q: Anyone know if this will work with friction shifter?**
A: Yes, friction shifters are a basic shifter equipped on many bikes as long as they are in working order, cables not seized and move freely inside cable housing. This works on old and new bikes regardless of its year as long as the bike has 7 or 8 speed cassettes that would be multiple cogs or sprockets , they have been called attached to the rear wheel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Big Fan of the large Cogs
  

*by M***M on Reviewed in the United States on 16 August 2024*

Smooth, quiet and sweet on the mountain bike for the price point

### ⭐⭐⭐⭐⭐ 







  
  
    Good replacement
  

*by D***Y on Reviewed in the United States on 22 September 2011*

Had a little spill on my Target Special (Schwinn Tourist) and the factory derailleur snapped just under the mounting bolt.  Long walk back to the car.  Realizing now that I should have spent more money on a better bike, I figured this replacement derailleur would hold me over.  If you do your research and read about the limit screws and how to initially mount the derailleur, as well as adjusting it, it really isn't that hard to get this thing tuned.  In fact, it only took me about 30 minutes.  The hard part was getting the bike off the ground to test the gears.  I looked on the Shimano web site.  They only advertise their high end stuff, so you need to enter the model number you're curious about and they have documents on-line pertaining to mounting/adjusting as well as an exploded view that helped me to understand how it specifically worked.  Of course, most of the same documentation was included in the box.Just remember, you'll need to keep the original derailleur hanger.  Just detach with the larger hex bolt that mounts it.I'm very happy with it knowing the potential limitations of not spending upwards of 100 dollars for a better one.  I'm really surprised about this bike, though.  Growing up, we thrashed our Schwinn bikes and they held up like tanks.  Guess you get what you pay for nowadays.

### ⭐⭐⭐⭐⭐ 







  
  
    Works perfectly
  

*by R***. on Reviewed in the United States on 27 April 2023*

I reluctantly had to replace a lovely older XT derailleur on my classic road bike that would no longer index properly. With a few adjustments this thing started shifting reliably, every time. It is both quiet and smooth. I chose silver for a more classic look, but black would probably be best in most situations. The good reviews are legit.

## Frequently Bought Together

- SHIMANO Altus Mountain Bike Rear Derailleur - Direct Mount - RDM310
- Shimano FD-M310 Aultus Front Derailleur (28.6-34.9-mm 3x7/8 Speed Low-Clamp)
- SHIMANO HG40 116 W/CL Chain - Grey, 6/7/8 Speed

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**Shop now:** [https://www.desertcart.ie/products/59461811-shimano-altus-mountain-bike-rear-derailleur-direct-mount-rdm310](https://www.desertcart.ie/products/59461811-shimano-altus-mountain-bike-rear-derailleur-direct-mount-rdm310)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-31*